Home / 916,905.12-1,375,292.74-242,971.50

Finding the Fourth Proportional to 916,905.12, 1,375,292.74 and 242,971.50

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Solution

The fourth proportional to 916,905.12, 1,375,292.74 and 242,971.50 is: 364,440.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,905.12 : 1,375,292.74 = 242,971.50 : x
  2. Step 2: Convert to fraction form
    916,905.12/1,375,292.74 = 242,971.50/x
  3. Step 3: Cross multiply
    916,905.12x = 1,375,292.74 × 242,971.50
  4. Step 4: Simplify right side
    916,905.12x = 334,156,939,976.91
  5. Step 5: Solve for x
    x = 334,156,939,976.91/916,905.12
  6. Step 6: Final answer
    x = 364,440.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.